Milking machine



W. A. SHIPPERT.

NHLKING MACHINE.

APPLICATION FILED IAII.26, 191s.

` Patented Jan. 31, 1922. 5f 8.5HEETS-SHEET 2- j@ lIIr/IJUI 77 II ff IIIIIIIIII l 7% Mii/ff I l J7 fr W. A. SHIPPERT.

I MIL'KING MACHINE. IAPPLICATION FILED 1AN.26,1918.

405,165 Patented Jan-31, 1922.

W. A. SHIPPERT.

MILKING MAcHmE.

APPLICATION FILED JAN. 26] 1918.

Patented Jan. 31, 1922.

8 SHEETS-SHEET 4 77 ai@ @my w. A.A SHIPPERT. IVIILKIIIG. MACHINE. APPLICATION FILED JAN. 26,1918.

1,405,166. Patented Jan.31 ,1922.

8 SHEETS-SH EET 5.

W. A. SHIPPERT. MIL'KING MAcH|NE.

APPLICATION FILED JAN.26. 1918.

1,4%65 Y Patented 33.1.31,1922. f

8 SHEETS-SHEET 6.

W. A. SHIPPERT.

MILKING MACHlNE. APPLICATION FILED JAN. 26. 191B.

1,405,166. Patented Jan. 31, 1922i s SHEETS-SHEET 1.

@f7/@ff I JMfM/a W. A. SHIPPERT.

MILKING MACHINE.

APPLICATION man 1AN.26, 19m.

Patented .1311.31, 1922.

' SHEETS-SHEET 8.

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UNITED "STATES,

PATENT 'Ormel-:.3

WARREN A SHIPPERT, or nIxoN, ILLINOIS, AssIGNon 'ro Bun'roN-PAGE COMPANY oF CHICAGO, ILLINOIS, AconPonA'rIoN or ILLINoIs.

MILKING IIACI'IINE.

Specification of Letters Patent. .PatentedlJa-,n 31 1922. A'

Application mea January 26, 191s. serial No. 213,855.`

T o all whom t may concern' Be it known that I, WARREN A. SHIPPERT, a citizen f the United States, residing at Dixon, in the county of Lee and State ofl Illinois, have invented certain new and useful Improvements in Milking Machines, of which the following is a specification.

My invention relates to cow milking apparatus of the suction type, and more particularly to a, milking machine' which isoperated by hand.

One of the objects of the invention is to provide, in combination with a hand operated pump of variable stroke, certain instrucow and discharging it into the milk can or other receptacle, whereby the operation of milking may 'be readily varied and controlled to suit the character of the particular animal. It is well known that somel cows are harder to milk than others. Sonie animals, moreover, are more sensitive and, for one reason or another, require more careful handling. The difficulty with a motor driven milking machine is that it has n0 convenient means whereby its operation may be adapted to the idiosyncrasies of the different cows milked.

A further object of the invention is to provide a hand operated vacuum pump for milking machines which may be manipulated with a minimum of effort. A further object is to improve the construction of the pump in respect to its piston, particularly, in other respects which will be made apparent.

A further object is to provide a hand milking machine which can be readily moved from place to place; which -will hold the milk receptacle firmly in place during the milking operation and when the machine is being moved; and which will consist of a comparatively small number of parts, of simple and strong construction, that may be readily removed from the machine for cleaning or repair.

A further object is to provide, in a milkin machine of this type, means ywhereby the teat cups may be conveniently and quickly put in place on the cows udder by 'the milker without assistancel from others.

The invention consists in the novel conmentalities for receiving the milk from the structions, arrangements and devices to be herelnafter described and claimed for carrymg out the above vstated objects andgsuch other incldental objects which will appear from the following description.

The invention is illustrated, in a preferred embodiment, in the accommpanying drawlngs wherein- Fig. 1 is a side elevation of the device.

Fig. 2 1s a fragmentary elevation, on a larger scale, of'the udder attachment.

Flg. 3'1s a vlew, in elevation, of the machine looklng in the direction indicated by the arrow in Fig. 4;

Fig, 4 is a plan view of the machine with A the milk receiving means and certain other parts removed. I

Fig. 5 is a sectional yview of one of the pump handles and its' connections. 4 70 .F.Fig. 6 is a sectional view on line 6-6 of i Fig. 7 is a sectional view on line 7-7 of Fig. 2. A

Fig. 8 is a longitudinal sectional view of the pump and associated parts.

Fig. 9 is a cross sectional view on line Fig. lO-is a sectional view of one of the teat cups.

Fig. 11 is a plan view of the means constituting the milk receiving chamber.

Fig. 12 is a vertical sectional view on line 12--12 of Fig. 11. i

Fi 13 is a sectional plan on line 13-13 of Fig. 12.

lFig .14 is a, fragmentary sectional View of the lower end of the pump c'ylinder shovs7`l ing the' piston at the end of the vacuum stroke of the pump.

' Fig. 15 is a sectional plan on line'- 15-15 of Fig. 14. -A

Fig. 16 is a fragmentary plan'view of the cross head forming part of the structure for operatin the pump piston. i

Fig. 1 is a detail view, in plan section, of the connection between the tension'spring and link mechanism-forming part of .thev mechanism for facilitating the operation of the pump. I

j Fig. 18 is a sectional view on line 18-.18 of'Flg. 17;l i i A' tion on the milking machine.

.trating the method of applying the teat cups to the cows udder;

Fig. 26 is a view, in perspective, of the milk strainer which serves also as means for holding` the milk' receptacle in proper posi- Fig. 27 is a view showing a modified form of surcingle.

Figs. 28 and 29 are diagrams illustrating the method of applying the teat cups to the cows udder when the form of Surcingle shown in Fig. 27 is used.

Fig. 30 is a diagram illustrating the application of a suitable device for crimping the hose connecting the milking chamber with the udder attachment when it is desired to closethe passage in said hose; and t Fig.- 31 is a sectional view illustrating a modified form of teat cup.

Like characters of reference designate like parts in the several figures of the drawings.

In the preferred embodiment of my inven- 1 tion shown in the drawings, the working parts of the machine are all supported on a supporting structure 'which is preferably ,provided with wheels and handles so that it may be moved from place to place. 'Ihe supporting structure is also provlded with meanslfor holding the milk can or other receptacle'intended to receive themilk from the cow. In order that this structure should be light, strong and inexpensive to manu-v facture, it is preferably composed, in a large part,` of metal tubing and is constructed as follows: The base consists of longitudinal pipe sections 25, 26, and transverse pipe sec- `tions 27, 27 united by a cross 28, pipe section 26 being flattened at 29 for the foot of the milker. At .the outer ends of the pipe sections 27 are elbows 30 to which are connected the upright members 31 to the upper ends of which are secured, by elbows 32, horizontally extending pipe sections 33 which provide handles. The supporting l structure is provided with rollers 34 on an axle 35 "which extends through the sections 27 and elbows 30,. the latter being formed with bosses 36 which provide bearings for the axle. The `handle members 33 are connected by an angle bar cross piece 37 which is also riveted to the upright tubular member 38 which is connected by a T 39 to the member 26.v The structure is preferably reinforced by diagonal braces 40 riveted to 41 rests upon the base of the supporting angle bar and upright 38. The milk can structure just described, and is preferably held in place by means of a strainer 42 (Fig. 26) which enters the-neck 43 of the can and is attached to a support adjustably fixed to the upright 38. This support consists of a casting 44` formed with curved ears 45 which extend partiallyaround the upright 38 and with projections 46 (Fig. 9) to which are attached the ends 47 of a ring-like v structure 48. The strainer 42 has clips or compression stroke a certain amount of air is forced into the chamber which produces the discharge of the milk into the milk can 41. The means constituting the milk chamber and its connections are preferably constructed in substantial accordance with my Patent No. 1,264,214., issued April 3o, 1918,

andthis device is not claimed herein except in connection` with the other instrumentalities constituting the hand-milking machine of my present invention. This device is carried, preferably, on the strainer support just described and consists of a base 51 attachedto the support, and a movable inverted. cup 52, the latter being preferably made of glass so as to be transparent. vided with a laterally projecting rod 53 on which is a slidable `catch 54 having' a set screw 55. The catch is formed with a nose piece 56 which extends under the ring 48. On the other side of the base is a pair of hooks 57 to. engage the ring. On the base 51 is a rubber disc 58 held in place by a washer 59. The lower edge of the cup.52 bears on the disc 58. The cup is uided in its movements by an annular ru ber diaphragm 60 held in place between the upstanding flange 61 of the base-and a ring The base is pro-- 62 which is angular in cross section and secured to the -base by screws 63. Preferably thelower edge of the cup is provided with a stop. I have shown for this purpose a rubber'band 64. Milk enters the chamber 65 through an inlet pipe 66. The air is exhausted from the chamber through a pipe 67, the opening in the upper end of which is protected by a shieldplate 6,8 formed with a sleeve 69 whereby it is mounted on pipe 66. Pipe 66 is formed with a nipple 70 for the rubber hose 71 leading from the udder attachment. If the machine is designed for Vmilking two cows at the same time pipe 66 will have another nipple for the rubber hose 72 Flg. 1) leading from the udder attachment for the other-cow. The air pipe 67 is formed with a nipple 73 for a hose 74 which is connected, as will vbe hereinafter described, to the pump.

When the air in chamber 65 is exhausted on the vacuum stroke of the pump the milk from the' cow is drawn into the chamber. On the return or compression stroke of the pump a slight pressure is produced inthe chamber which raises cup 52 allowing the milk to flow out from under the lower edge of the cup and pass through openings 75 1n p the base into the milk receptacle 41.

.struction but is preferabl -by a bolt 79 which 83 whichpasses through slot 80 in the upright and is provided at its outer extremity with a vacuum gauge 84. A 'Tv 85 interposed between sections of pipe 83 provides a nipple for the hose 74 above referred to.

The head 77 is formed with a threaded opening 86 (Figs. 19 and 20) in which is ar-v leak even after considerable use.

ranged a threaded plug 87 formed with a triangular slit 88. This arrangement .provides a 'minute adjustable vent for the cylinder, the purpose of which will appear.

The lower cylinder head 78 is secured by bolt 89 to the upright 38 and is boredn at 90 for the piston rod 91. rlhe piston consists of a pair of leathers, so-called, (which may be made of any suitable tough, iexible material these leathers being shown at 92, 93 Figs. 8 and 14), a spiral spring 94 interposed between the leathers and overlapped by their edges, and preferably, a flat upper leather 95. The leather 93 is held between.

'against the lower spacing nut 101,*thereby providing a buffer for the piston on its -down stroke. The meeting ends of the spiral spring 94, overl which thev leathers 92, 93

are lapped, are held together by a stiff wire- 106, the ends of which rare bent over as indicated at '107 and project between turns of the spring. The piston, as above described, is lso constructed that it will not vThe piston rod 91 is connected at its lower end to a cross head 108 which is arranged to slide on a rod 109 secured at its upper The parts are held in end of the cylinder head 78 and lat its'lower end-to the frame member 26. This rod passes i through a triangular member 110 whlchis secured to the cross head 108 by the same nuts 111 bymeans of which there is secured to .the cross head the piston rod 91 and a pair of additional rods 112 by means of which the I cross head i's reciprocated. These rods 112 are connected at their upper endby aring 113 which surrounds cylinder' 76, the ring be- 'in provided with ears 114 through which ro s 112 pass and to which the rods aresecured by set screws 115. vSecured to the rods 112are a pa'ir of handles Ywhich may b e adjusted angularly and also vertically on the rods. On each rod is a sleeve 116 adapted to be secured to the rod by set screws v117v and formed with a threaded boss 118 for a stud 119, the latter having a circumferential channell 120 into which projects the end of a screw 121 set into the hand grip 122. This arrangement allows 'the hand grips to be turned. The handles are arranged ordinarily below ring 1-13 but, if desired,.in case the operator is a tall man, for example, the ring may be removed andthe handles placed on the projecting ends of rods 112 above the rlng.

lin the ordinary operationv of a this character the force necessary or creating the vacuum will necessarily increase as the intensity of the vacuum increases, that is to say, toward the end ofthe down stroke of the pump.. In order to make the pump more easy of manipulation I preferably provide a link and spring mechanism arranged between the supporting structure of the machine and the piston rod-cross head 1 08 and constructed so that spring pressure is brought to bear against the cross head on the vacuum stroke which gradually increases as the dow1i,

ump of l ward movement of the piston proceeds. lThe "I spring is stressed on 'the-'up stroke of the pump, during which, of course, the piston moves more freely, to bring about the spring pressure brought into play to assist the operator in the down or vacuum stroke of the piston. In this way there is a distribution or balancing of forces which besides making the pump operation an easy one for the milker, gives the pump a smoother action than it would otherwise have.

The cross head 108 is connected with the stationary transverse frame member 37 by a pair of jointed links connected at their joints by a spiral spring 123. Each of these jointed links is made up of two members 124, 125,*pivoted,'respectively, to frame member 37 at 126 and to cross head 108 at 127, and pivoted to each other by means of ya pintle 128 in the form of a rlvetfwhich extends through the members 124 and 125 and through a spacing sleeve 129 (Figs-17 and 18). The spacing sleeve is-formed with a groove 130 for a hook131. The end of the hook is rovided with a ball 132 and the terminal oops of the spring 123 are diminished in their diameter so that -in effect a socket is provided engagingthe ball 132. By this device the connections between the ends of spring 123 and the jointed links are, in effect, universal lconnections allowing the links to flex readily withouty disturbin the position of the s ring except to expan it or contract it, as t e case may In Fig. 3 the lower position of the'reclprocatin tache and the corresponding position o f the ointed links and springy are shown in full lines. The upper position of these arts is indicated in dotted lines. -As the andles are raised from their full line position to the dotted line position, this occurring on the'co'mpression or back stroke of the pump, the spring 123 is stretched. 0n the vacuum or down stroke, which is the stroke requiring the most force, the operator is materially assisted by the force exerted by the spring which is augmented due to increased leverage as the piston lproceeds with itsv downward' ad]usted, 1f necessary, by..manipulation of stroke.

The udder attachment will next be describedin the preferred form shown in the drawings. Thls device comprises a tubular member 133 provided with nipples 134 preferably arranged in pairs at an angle to each other, and a corresponding number of teat cups 135 connected to the nipples by rubber hose sections 136. The teat cups may be of any preferred construction.. The tubular member 133 is preferably provided on its underside with a sprin to engage one of the ru ber hose sections 136, in case its teat cup is not used, so as to crimp the .hose sect1on in question and prevent leakage of air.

The tubular element is also provided, preferably, with means by which it may be supported on a surcingle 138. This means consists of a hook 139 engaged with a ring 140 held'to the member 133 by set screw 141. `The rin is arranged at the inner end of the tubu ar member so that there is a balance between the weiiht of the hose 71,

which connects 4the ud er attachment with' indicated at 138. This arrangement is more convenient for adjustment than a buckle would be.

The pump is provided with means for structure to which the piston isatclip 137 adapted holding the vpiston at the end of its vacuum stroke so that the milker may let go of the pump handles and ad'ust the udder attachf member 26 near the foot piece 29. This latch may be raised by the operators foot so as to engage the triangular plate 110 on the cross head 108.l The pump is ,given its down stroke to' produce a vacuum with one hand while the milker holds the udder attachment in his other hand with the teat cup hose bent over to prevent ingress of air, as-

shown in Fig. 23. Hethen latches the cross -head of the piston in its lower'position by means of latch 146 and oes to the cow with the udder attachment st1l1 held in his hand, as, above described. If a surcingle is used the hook on the udder attachment is en'- gaged with the surcingle and the surcingle catch 143, all of which may be done with the one hand. Theteat cups are then placed on the teats of the cow onel by one. This operation is easy and may be accomplished with one hand because of the vacuum maintained by the pump. With the pump properly constructed the vacuum w1ll last long enou h to attach all of the teat cups without iiiiculty. When the teat cups have been adjusted they. will remain in position even though the vacuum is dissipated.

The milking vacuum for the ordinary cowpump. He can manipulate the pum while watchin lthe animal or animals he 1s milking an while observing the milk flow. through the cup 52 which is preferably made of glass. The machine is also rovided with the vacuum gau e 84 for gui in the-0per ator. With a ittle practice tge milking operation'willhave all the flexibility of milkinby hand. I

he operator can, as stated, observe the flow of milk into, the milk receiving chamber 54. This enables him to hold the down at the proper point until a norma milk yflow results. The point at which the down stroke of the pump is to cease will depend in a lar e measure upon .the peculiarities-.of

l the particular animal, which .will be known..

to the operator; fbut in additiomtojthls the 1-30 Y o rator willl guided by the intensity ofv vacuum produced as shown by the vacuum4 Y necessary the pump may fao conditions of the pump and the strand 150'. The other is preferably looped around the catch 143 4in substantially the same manner as gauge, so that the length of stroke can be varied if necessaryin accordance with the otherI air connections of the apparatus. When the milk has risen to the proper height in the milk chamber the piston is raised and this produces a pressure in the milk chamber which may be adjusted by turning the screw plug 87 controlling the airvent in the upper cylinder head. The air pressurein the milk receivin chamber raises the cup f rom its seat so iat the milkis discharged into the milk can 41. When two cows .are to be milked itis necessary to crimp one of the connections from the milk receiving udder attachment for' one cow while the other udder attachment is being adjusted tol the other cow. This is accomplished by the loop 147, which as shown in Fig. 1, crimps hose 72. vAlfter the udder attachment connected with hose 71 has been adjusted to one of the cows, the loo 147'may be taken from hose 72 and the ud er attachment connected to that hose applied to another cow.

be manipulated between these operations to re-establish the vacuum which may have become dissipated.

In Figs. 27, 28 vand 29, l have shown a modified form'of surcingle which consists preferably of a rope or cord 148, one end of which is folded upon itself, and spliced to the rope or cord as indicated at 149 (Fig. 27), so as to provide spaced supporting end of this sui'cingle escribed in connection with Fig. 22. The surcingle is referably girded about the body of the animal so'that the spaced strands 150'Will be in contact with the udder of the cow. The teat cups are then applied to the position indicated in Fig. 28 after which they may be moved to the position indicated in Fig. 29. When the teat cups are in the position indicated in Fig. 29, the teats may be partly inserted into their respective cups by the operator. The vacuum pump may then be operated in the manner previously described to create a vacuum which will draw the teats further intov the cups.

In Fig. 31 l have shown a modified form of teat cup which consists of a tubular member 151 which is flared at its upper end to provide a flange- 152, 153, 153 designate rubber diaphragins which may be clamped against the flange 152 by means of the ring 154 and the screws 15 hook secured to the flange 152 adapted to support -thel cups in operative position, on the surcingle.

1. In a milking machine, the combination chamber to the 5. 156 4designates a impart movements with a hand operated vacuum pump,having a working element and teat connection with the pu'iip lthrough .which suction is applied to the cows udder; of' means for holding the working element of the pump in fixed position after a vacuum has been established, thereby maintaining the vacuum in the teat cups while-the cups are being applied to the cow.

I 2. In a milking mach'ne, the combinat1on with a hand operated vacuum vpump h'aving a reciprocating element and teat cups having connections through which suction is applied to the cows udder; of means for holding the reciprocating element in fixed position at the end of its vacuum stroke for the purpose described. 1 3. `A milking machine of the typeoperating to withdraw milk from the cow by suction and to discharge the same to a recepcups having a tacle at atmospheric pressure comprising 1n A combination a milk receiving chamber adapted to be associated with said receptacle, a cluster of teat cups,'a flexible conduit through which the milk passes from the teat cups to said milk receiving chamber f and means for gradually creating a partial vacuum in said chamber, conduit and cups comprising a vacuum pump consisting of a cylinder, a piston, and a piston rod extending through the lower end of the cylinder, a support for the cylinder, a conduit leading from the upper end of the cylinder to said milk receiving chamber, a cross head to which the piston rod is attached, means whereby the operator of the machine may impart movements to the cross head, a pair of jointed links connected at opposite ends4 to the support and to said cross head re-y spectively, and a spring connecting said links at their joints, wherebythe length of the stroke ofthe pump may be varied by the operator to vary the intensity of each lsuction impulse applied to the cows udder.

4. A milking-machine ofthe type operating to withdraw milk from the cow by suction and to discharge the same to a receptacle at atmospheric pressure comprising in combination a. milk receiving chamber adapted to be associated with said receptacle, a cluster of teat cups, a flexible conduit through which the. milk passes from the teat cups to said milk receiving chamber and means for gradually creating a partial vacuum inA said chamber, conduit and cups comprising a vacuum pump consisting of a cylinder, a piston and a piston rod extending through the lower end of the cylinder, a support for the cylinder, a conduit leading from the upper end of the cylinder to said milk receiving chamber, a cross head to which the piston rod is attached, means whereby the operator of the machine may to the cross head, a pair of jointed links connected at opposite ends ing to withdraw milk from the cow by suction and to discharge the same to a receptacle at atmospheric pressure comprising in combination a milk receiving chamber adapted to be associated with said receptacle, a cluslter of teat cups, a flexible conduit through which the milk passes from the teat cups to said milk receiving chamber and means for gradually creating a artial vacuum. in said chamber,.conduit an cups comprislng a vacuum pump consisting of a cylinder, a piston, and a iston rod extending through the lower en of the cylinder, a support for the cylinder, a condult leading from the upper end of the cylinderjto said milk receiving chamber, a cross head to which the piston rod is attached, means whereby the operatorof` the machine may impart movements to the crosshead, a pair of 'jointed links connected at *opposite ends to the support and to said cross head respectively, a spring connecting said links at their joint, a guide rod on w ich said cross head is slidable, a 'ring slidable on said cylinder, rods connecting the ring with the crosshead, and

handles on said rods, whereby the length of the stroke of the pump may be varied by the operator to vary the intensity of each suction impulse applied to the cows udder.

6. A milking machine of the type operating to withdraw milk from the cow by suction and to discharge the same to a receptacle at atmospheric pressure comprising in combination a milk receiving chamber adapted lto be associated with said receptacle, a cluster of teat cups, a flexible conduit through which the mi k passes from the teat cups to said milkrecei'ving chamber and means for gradually creating a partial vacuum in said chamber,conduit and cups comprising a vacuum pump consisting of a cylinder, a piston, and a plston rod extending through the lower end of the cylinder, a supportfor the cylinder, a conduit leading from the upper end of the cylinder to said milk receiving chamber, a cross head to which the piston rod is attached, means whereby the operatorof the machine may impart movements to the cross head, a pail' of jointed links connected at opposite'ends to the support and to said cross head respectively, a spring connecting said links at their joints, and, means for holding said cross head in a fixed position at the lower end of the stroke of the piston; whereby the length of the stroke of the-pump may be varied by the operator to vary the intensity of each suction impulse applied to the cows udder. v

7. A milking machine of the type operating to withdraw milk from thel cow by suction and to discharge the same to a receptacle at atmospheric ressure comprising in combination a milk receiving chamber adapted to be associated with said receptacle, a cluster of teat cups,.a flexible conduit through which the milk passes from the teat cups to said milk recelving chamber and means for gradually creating a partial vacuum' in said chamber, conduit and cups comprising a vacuum pum consisting of a cylinder, a piston and a plston rod extending through the lower end of the cylinder, a support for the cylinder, a conduit leadin from the upper end of the cylinder to sai milk receiving chamber, a cross head to which the piston rod is attached, a ring slidably arranged on thev cylinder, rods connecting said cross head and ring and handles on said rods, whereby the length of the' stroke of the pump may be varied by the operator to vary the intensity of each suction impulse applied to the cows udder.

8. A milking machine of the type operat a cluster of teat cups, a flexible conduit through which the milk passes from the v teat cups to said milk receiving chamber and means for gradually creating a. partial vacuum in said chamber, conduit and cups comprising a vacuum pump consisting of a cylinder, a piston, and a pistonl rod extending through the lower end of the cylinder, a support for the cylinder, a condult` leading from the upper end of the cylinder to said milk receiving chamber, a cross 'head to which the piston rod is attached; a ring slidably arranged on the cylinder, rods `connecting said cross` head and ring, and handles adjustable vertically and angularly on said rods, whereby the length of the stroke of the pump may be varied by the operator to vary the intensity of each suction impulse applied to the cows udder.

9. A milking machine of' the type operatl ing to withdraw milk from the cow by suction and to discharge the same to a receptacle at atmospheric pressure comprising 1n combination a milk receiving chamber adapted to be associated with sa'id recep cylinder, a sup ort-for the cylinder, a conduit leading rom the upper end of the cylinder.. to said milk recelvin chamber, a cross vlfead to which the cylin er rod is attached, a ring slidably arranged on the cylinder, I'rods connecting said cross head and ring, handles on said rods, and a guide rod on which said cross head is 4slidable, whereby the. length of the'stroke of the'pumpl may be varied by the operator to vary t e in-l tensity of each suction impulse applied to the cows udder.

10. 'In a milkingmachine, the combination of a supporting structure having a base to sustain a vmilk receptacle, and an upright member, a pump on said supporting structure, an udder attachment, milk receiving means having connections to said pump and udder attachment, a sedpport for the milk receiving means adapt to be fixed adjustably to .said upright-member, and a strainer connectedwith said support adapted to fit into the` milk receptacle to hold the same in l place on said supporting structure. v

Y 11. In a milking machine,the combina-l tion of a supporting structure having a. base to sustain a milk receptacle and an upright member, a pump on said supporting structure, an udder attachment, milk 'receiving means having connections to said pump. and udder attachment, a support fixed adjustably to said upright member, and a strainer connected with said support` ada ted to fit into the milk receptacle to hold t e same in place on said supporting structure.

12. In a milking mlachine, the combination of a sup-portlng structure adapted Ato sustain a milk receptacle, a pump thereon, an udder attachment, milk receiving means having connections lwith the pump and udder attachment, a ring adjustablyJ attached to said supporting structure, a strainer adapted to lit into the milk receptacle and having, means for sustaining it on said ring, means on the milk receiving means for engagement with said ring, and a slidable catch associated with said milk receiving means which engages with said ring.

13. In a milking machine, the combination of a' wheeled supporting structure adapted to sustain a milk receptacle, a hand operated pump ,on said structure, an udder attachment, means providing a milk receiving chamber connected with said pump and udder attachment, a device engageable with said supporting structure for holding said milk receiving means in place over the milk receptacle, and handles on said supporting structure.

14. In amilking machina-the combina- -tion of a pump and udder attachment, means providing a milk receiving chamber connected with said pump and udder attachment, a supporting structure comprising a base having wheels at the forward end and a foot piece at the other end and adapted t0 hold a milk yreceptacle, an u right membei" to which the pum is sec a support on said upright mem r which holds 'the milk receiving chamber over said milk receptacle,

said supporting structure being provided connecting said cups with said nipples, and

a clip on the under side of said tubular member to which the hose sections may be engaged so as to crimp them to prevent ingress of air.

y16. In a milking machine, the combination of a vacuum pump, an.'l udder attachment and means comprising a'h'ose for putting said udde-r attachment in communication with the pump; said attachment comprising a tubular member secured to said g hose and formed with nipples projecting therefrom,'teat cups, hose sections connectmg said cups with said nipples,l and means associated with said tubular member adapt-- ed to engage a surcingle.

17. In a milking` machine, the combination of a supporting structure, a vacuum pump comprising a cylinder and a piston, an udder attachment, means constituting a milk receiving chamber, and pipe connections between the-chamber and the udder attachment and pump, respectively, the latter connection opening from the end of the cylinder remote from the position of the piston at the end of the vacuum stroke of the pump, said cylinder being provided at the aforesaid end with vent of adjustable size'.

18. In a milking machine, the combina- 'tiony of a supporting structure, a substantially vertical pump cylinder thereon, a piston in said cylinder movable downwardly at Athe vacuum stroke of the pump, an udder means constituting a attachment, means constituting a milk receiving chamber having connections With the udder attachment and th'e upper end of said cylinder, respectively: the upper end of said cylinder being formed with a threaded opening, and a threaded, longitudinally slit plug in said opening to provide an adjustable vent for the cylinder.Y 19. In 'a milking machine, the combination with a vacuum pump, of teat cups having a connection with the pump through which suction is applied to the'cows udder, and a surcingle for supporting said teat cups comprising Aa flexible member folded upon itself to provide two supporting rands adjacent the cows udder.

20; In a milking machine, fthe combination with a vacuum pump, of teat cups havwhich is operated b hand thereby permitting variations in tiie length. and rapidity of the stroke.

26. In a milking machine, the combination with yan udder attachment and a vacuum ing a connection with the ump through pump to produce an exhaust therein having which suction is applied to t e cows udder, and va surcingle for supporting said teat cups comprising a flexible member folded upon itself to provide two supporting strands adjacent the cows udder, said teat cups being provided with hooks adapted to support said cups on said surcingle.

21. A teat cup comprising a tubular meniber *formed with a flange, a plurality of iiexible 4diaphragms adapted to be clamped against said flange, and a hook secured to said tubular member adapted toliold the same in operative position on the cows udder. D 22. A milking machine ofthe type operating to withdraw milk. from the cow by suction and to.. discharge the same to a receptacle at atmospheric pressure, comprising in combination a milk receiving chainbervadapted to be associated with said receptacle, a cluster of teat cups, a valveless, flexible conduit through which the milk passes unobstructedly from the teat cups to said milk receiving' chamber and means for gradually creating a partial vacuum in said chamber, conduit and cups, comprising a pump consisting of piston and cylinder members one of which is movable with respect to the other and is provi-ded. with variations in the length and rapidity of thestrokes.

24. In a milking machine, the combination' with teat cups and teat cupv connections; of apparatus for. exhausting the air from said connections vand cups in recurring pulsations, comprising a transparent milk receiving chamber, and an exhaust pump which produces suction on the down stroke and which is manipulated by the operator thereconnections and cups in' recurrin tions, comprising a transp-arent mil receivby ermitting variations in the length and rapidity df the strokes;

25. In a milking machine, the combination with teat cups and teat cup connections; of apparatus for exhausting the air from said pulsaing chamber and an exhaust pump which produces suction on the down stroke and a reciprocating element, of mechanism automatically brought'into play onthe vacuum stroke ofthe pump for exerting a force upon the reciprocating e1ement in`the direction to assist said stroke.

27. In a milking machine, the combination with an udder attachment 'and a Vacuum pump to produce an exhaust therein having a reciprocating element, oli' mechanism automatically brought into play on the vacuum stroke of the pump for exerting a force upon the reciprocating elementl in the direction to I,

assist said stroke, comprising a spring which is stressed on the return stroke of the pump.

' 28. In a milking machine,t the combination with an udder attachment and a vacuum pump to produce an exhaust therein'having a' reciprocating element and a support yfor the same, of a link mechanism connected with said reciprocating element and support,

Aand a spring connected with said link mech-v anism so that it is put under stress on the upon the reciprocating element on its vacuum stroke.'

29. In a milking machine, the combination With an udder attachment and a vacuum pump to'produce an exhaust therein, having a reciprocating element and a support 'for the same, of a pairof jointed links connected at opposite ends to y,said support and reciprocating element ,respectively and a spring arranged between and connected to the links at their joints.

30. In a milking machine, the combination with a vacuum pump comprising a cylinder,-

a piston and a piston rod extending through the lower end of the cylinder; of a support for the cylinder, an udder attachment, a milk receiving chamber, pipes leading there- .to from the upper en-d ofthe cylinder and lfrom the udder attachment, a cross head to which the iston rod is attached; a pair of jointed links connected at opposite ends to the support and to said cross head, respectively; and a spring connecting said links at their joints.

31. In a milking machine, the combination with a vacuum pump comprising a cylinder, a piston, and a piston rod extending i through the lower end of the'cylinder; of-a support for the cylinder; an ud'der attachment, a milk receiving chamber; ipes leading thereto from the upper end o the cylinder and from the udder attachment; a cross head to which the iston rod is attached; a

pair of v jointed lin connected at opposite ends to the support and to said cross head, respectively; a spring connecting said links port and to saidcross head, respectively a.

spring connectin said links at their joints.; a guide rod on W ichsaid cross head is slidable, a ring slidable on said cylinder; rods connecting the ring with the cross head; and handles on said rods.

33. In a milking machine, the combination with a vacuum pump comprising a cylinder., a piston, and a piston rod extending through the lower end ofthe cylinder; of a support for the cylinder, an udder attachment, a

Y milk receiving chamber; .pipes leadin thereto from the upper end of the cylin er and from the udder attachment; a cross head to which the piston rod is attached; a pair of jointed' links connected at .opposite ends to the support and to said cross head, respectively; a spring connecting said links at their joints; and means kfor holding said cross head in a fixed 'position at the lower end of the stroke ofthe iston.

34. In a milking machine, the combination with a vacuum pump comprising a cylinder, a piston, anda piston rod extending through the lower end of the cylinder; of Va support for the cylinder; an ludder att'achinent, a milk receiving chamber; lpipes leadin therefrom the udder attachment; a cross-.head to which the piston rod is attached; a ring vslidably arranged on the cylinder; rods connecting said cross heady and ring; and handles on said rods, Y v

35. In a milking machine, the combination with a vacuum pump comprising a cylinder, a piston and a piston rod extending through the lower end of the cylinder; VYof 'a'suppoi't for the cylinder, an udder attachment; a

milk receiving chamber; pipes leadin thereto from the upper end of the cylin er and from the udder attachment; a cross'head to which the piston rod is attached; a ring 58 slidably arranged on the cylinder; rods connectin saidcross head and ring; and handles" stable vertically and angularly on f-'said ro to from the upper end of the cyl'ih" er and- 36. In .a milking machine, the combination with :a vacuum pump comprising a cylinder, a iston anda piston rod extending through .illlie lower end of the cylinder; of a support for the cylinder, an udder attachment; a milk receiving chamber; pipes leading thereto from the upper end ov the cylinder and :from the udder attachment; a cross. headv to which the piston rod is attached; a ring slidably arranged on the cylinder; rods connecting said cross head and ring; handles on said rods; and a guide rod on which said' cross head is slidable.

37. In a milking machine, the combination of ian udder attachment, a support, a pump to produce an exhaust in the udder attachment comprisin a reciprocating element .and an element ixe tothe support, a pair of jointed links pivoted to the support andto 'said reciprocating element, and a spring ar- Vrantged between and engaged with said links at eir joints by universal connections.

. 38. In a milkin machine, the combination of an udder attac ment, a su port, a pump :to produce exhaust in the udder attachment comprising a reciprocating element and an element fixed to said support, a pair of jointed links pivoted to said support and to said reciprocatin element, each link composed of a pair o members, a pintle connecting the same and a sleeve surrounding said pintle, hooks engaging said sleeves formed with balls at their inner ends, and a coiled spring, the end turns of which are of diminished diameter-so as to engage said balls as sockets. 39. In a milkin machine, the combination of an udder attac ment, a su porting structure, a vacuum pump to p ucc an exhaust in the udder attachment comprising a cylinder, a piston in said cylinder,` a reciprocating structure'to which the piston is attached, means for guiding said reciprocatin structure, and a pair of handles adjustab e angularly and vertically on said reciprocating gripsh 40. In a milkin machine, the combinationof an udder-'at ment,` a su porting structure, a vacuum pump to pr uce an exhaust in the udder attachment comprising a cylinder and a piston, a reciprocating structure to which the piston is attached, meansfor guiding said reciprocating structure comprising a ring surrounding said cylinder and guides on said supporting structure, and a pair of handles on said reciprocating structure.

e WARREN A. si-iirriaizfi.

'structure provided with loose, revoluble ioo 

